Glossary — captable
Option pool (ESOP)
Also known as: ESOP · Employee Stock Option Pool
An option pool is a reserved allocation of equity (typically 10–20% of the company) set aside to grant to current and future employees as stock options.
How it works
The option pool gets re-loaded at each round. Investors typically require the company to expand the option pool to cover the next 18–24 months of hiring BEFORE their investment closes — meaning founders bear the dilution, not the new investors. This is called the 'option pool shuffle' and it's a key negotiation point.